DE2226969A1 - Two-part electric coupling - Google Patents

Description

Dr. phil. G.B. HAGEN IMpL-Phye. W. Kalkoff Patent attorney Patent attorney ο jj c. qc

• <000 MUNICH 71 (Solin)

Franz-Hals-Strasse 21 -

Telephone 796213

AMP 3O5O Munich, May 28, 1972

NS

AMP Incorporated
Eisenhower Boulevard
Harrisburg, Pa., V. St ₀ A.

Two-part electric coupling

Priority: June 9, 1971 and I3. Jan. 1972 $ France; No. 7I.2O987 and No. ₀ 72.01153

Some time ago, an electric battery for automobiles has been developed in which the usual ones of the Top of the battery upwardly protruding pins to which the battery cables are to be connected by means of Terminals attached to the pins by nuts and bolts, have been replaced by electrical tongues that move extend downward from the sides of the battery and are pressed into the material of the battery housing.

This development in the construction of batteries makes it possible for the screw and nut connections between the battery and its cables can be eliminated »However, the problem arises that between the battery brackets and the battery tongues a formso

coherent locking must be created / that the connections between the lines and the battery due to the vibrations generated by the motor vehicle engine to break.

209852/0657

Bayerisdie Vereinsbank Mündien 820993

AMP 3O5O - 2 -

It is an electrical coupling known for example from US-PS 3 3L6 522, having a first and a second geflaiischte metal plate, wherein the plates are formed interlockably purpose of joining the panels with each other by relative rotation of the plates in an adjacent connection _o However, have the Plates themselves do not provide a means of preventing reverse relative rotation between the plates, so that additional clamping means are required to secure the plates in their interconnected position. This is undesirable because the supply line should be quick and easy to connect to and detach from the battery and because the provision of a third member makes an additional assembly step necessary. In addition, the disks themselves are not provided with locking means to enable the disks to be positioned in their correct relative positions prior to rotation. The absence of such fixing means means that the time required to produce the electrical coupling is longer and greater skill is required for it.

A two-part electrical coupling consisting of a first and a second flanged metal plate, the two plates being connectable in such a way that they can be fixed by relative rotation of the plates resting against one another are connected to one another, is characterized according to the invention in that one of the plates has a projection

is has, which is offset with respect to the plane of the plate / and engages a curved guide surface of the other plate, so that the plates are in their proper relative positions prior to the relative rotation causing the connection the plates are fixed and guided during the relative rotation taking place, and that the flanges of the

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Al-IP 3050 - 3 -

Plates cooperate with each other after joining so that a nose on one of the plates into an opening in the other Plate is pressed and prevents further relative rotation of the plates.

So the panels are in their interconnected position positively locked against unintentional loosening of the connection, for example as a result of vibrations, however, they can easily be separated from each other manually.

Embodiments of the invention are given below under Explained in more detail with reference to the figures. From the figures show;

Figure 1 is a perspective view of a first

Embodiment of a two-part electrical Coupling before the parts are connected I

Figure 2 is a perspective view of the coupling shown in Figure 1, the parts with each other are connected;

FIG. 3 shows a perspective illustration of a second embodiment of an electrical coupling the connection of the parts to each other} and

FIG. 4 shows a perspective illustration of the FIG 3 after connecting the parts together.

In the first embodiment of a coupling according to the invention has a first plate formed by an electric tongue 2, which is from one side of a not shown Motor vehicle battery extends downwardly a pair of flanges 4 and 6 which extend from opposite one another Sides of the tongue 2 extend and over the same side

209852/0657

AMP 3050 - 4 -

of the tongue 2, the elongated flanges in the direction of their longitudinal extension, d. H. longitudinal of the tongue 2, are offset with respect to one another.

A second plate 16 has pressing clamps IO and 12 which extend from its edge and which are pressed around the electrically conductive core or the insulation of an insulated battery line. Elongated flanges l8 and 20, which extend laterally from opposite edges of the plate l6, are held on the plate l6 at a distance from one another on the same surface of the plate l6, the flanges l8 and 20 in the direction of their length, ie in the longitudinal direction of the Forces 10 and 12, are offset with respect to each other. Each flange 18 and 20 has a curved spring arm 22 which is formed by slitting the flange. The plate 16 is provided with a circular hole 25, and its protruding part 24 extends towards and is connectable to a circular hole 26 in the tongue 2, the hole 26 delimiting a guide surface for the projection 2k . In addition, the plate 16 has a circular nose 28 which extends from the same side of the plate 16 as the projection 24 and comes into engagement with a circular opening 30 in the tongue 2. The nose 28 is formed by punching out a circular protrusion in the plate 16. The nose 28 is at the same distance from the hole 25 as the opening 30 is from the hole 26.

The distance between the flanges 18 and 20 and the plate 16, the arched spring arms 22 and the height of the nose 28 on the one hand and the distance between the plate 2 and the flanges 4 and 6 on the other hand is such that when the two Parts are connected to each other, the plates 2 and .l6 are firmly pressed together.

For coupling the tongue 2 and the plate l6 to one another for the purpose of electrical connection of the core of the conductor l4 with the tongue

209852/0657

AMP 3050 - 5 -

2, the plate 16 is first moved from the position of FIG. 1 towards the tongue 2 in the direction indicated by the arrow A in FIG 20 of the plate 16 are not in contact with the flanges 4 and 6 of the tongue and the projection 24 engages in the hole 26 of the tongue 2. In this relative position of the plates 2 and 16, the locking lug 28 is not in alignment with the hole 30. The plate 16 is then rotated relative to the tongue 2 on which it rests, this rotational movement being caused by the engagement of the projection 24 the guide surface 27 is steered, and this rotation is carried out in the direction indicated by the arrow Binder Figure 1 and about an axis C in Figure I ₁ which extends at right angles to the plane of the tongue 2 and the plate 16. As a result of this rotational movement of the plate l6, the spring arms 22 of the flanges l8 and 20 of the plate l6 engage under the flanges 4 and 6 of the tongue 2 and press the plate l6 and the tongue 2 resiliently towards one another. So when the lug 28 is brought into alignment with the hole 30 as a result of the rotational movement of the plate l6, the lug 28 is resiliently pressed into the hole 30 by cooperation between the flanges of the plate l6 and the tongue 2, so that any further rotational movement of the Plate 16 is prevented} As a result, the connection between the plate 16 and the tongue 2 is essentially insensitive to vibrations. The plate 16 and the tongue 2 can, however, be released from one another in a simple manner by rotating the plate 16 in a direction opposite to the arrow B.

In the second embodiment of the coupling according to the invention, which is designed similarly to the first, the locking lug 28 and the opening 30 are omitted and through Replaced slings provided on the flanges. In particular, each of the flanges 4 and 6 has a longitudinal

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direction of the flange (to the side of the tongue 2) extending slot 29, which ends just before the free end of the flange, while each of the flanges 18 'and 20' is provided with a small rib 23 which has two converging sides which over one rounded ridge are connected to one another, each rib being formed by pressing out a central part of the spring arm 22 ' _o The flanges 18' and 20 'have a greater extent in relation to the longitudinal direction of the pressing clamps 10 and 12 than the flanges 18 and 20 of the first Embodiment, whereby their strength is increased.

When the two parts are connected, the tongue 2 and the plate 16 of the second embodiment are rotated relative to one another in a similar manner to the first embodiment of the invention, and the ribs 23 engage the undersides of the flanges k and 6 and press the plate 16 and the tongue 2 towards each other. The flanges 18 'and 20' are slightly deformed against their inherent spring property, so that the relative movement between the ribs 23 and the undersides of the flanges k and 6 is made possible. When, as a result of the rotation of the plate 16, the ribs 23 are aligned with the slots 29 in the flanges 4 and 6, the resilience of the flanges causes the ribs to snap into the slots 9 so that any further rotation of the plate 16 is prevented.

It should be noted that the couplings described above are not only used when connecting a supply line to a battery, but can also be used in other areas where a connection that can be easily produced and detached with positive locking is required.

Claims

203852/0657

Claims (8)

AMP 3O5O - 4 - patent claims 1.J Two-part electrical coupling, consisting of a and a second metal plate provided with flanges, the two plates being connectable in such a way that they are connected to one another by relative rotation of the adjacent plates, characterized in that one (16) of the plates (2, 16) has a projection ( 24), which is offset with respect to the plane of the plate and engages a curved guide surface (27) of the other plate (2), so that the plates are fixed in their proper relative positions before the rotation of the plates causing the connection and select- ' rend of the relative rotation taking place, and that the flanges (4, 18; 6, 20 (Fig. 1 and 2)} 4, 18 * i 6 _r 20 '(Fig. 3 and 4)) of the plates (2 , l6) cooperate after connecting with each other so that a nose (28) (Fig. 1 and 2); 23 Fig. 3 and 4)) printed on one of the plates in an opening (30 (Fig. 1 and 2) f 29 (Fig. 3 and 4) -) in the other plate (2) and a further relative rotation of the plates (2, l6) prevents * 2. Two-part electrical coupling according to claim 1, characterized in that each plate (2, 16) has a pair of flanges (4, 6 $ 18, 20 (Fig. 1 and 2)} 18 ", 20" (Fig. 3 and 4)) and that the flanges (l8, 20 and I8 ¹ , 20 *) of one plate (l6) are slotted to form spring arms (22j 22 · -) »which are in resilient engagement with the flanges (4, 6) reach the other plate (2). 3. Two-part electrical coupling according to claim 1 or 2, characterized in that each Plate (2, 16) has a pair of flanges (4, 6 and 18, 20 (Fig. 1 and 2) j 4, 6 and 18 ", 20" (Fig. 3 and 4)) and that the flanges of one (2) of the plates (2, 16.) are above one side of this plate (2) and the flanges of the other 20985270657 Plate (l6) protrude laterally beyond the edges of plate (l6) and offset with respect to the plane of plate (l6)
are arranged. 4. Two-part electrical coupling according to one of claims 1 to 3, characterized in that that the locking lug (23) is provided on a flange ( ¹ or 20) of one plate (16) and the opening (29) is provided in a corresponding flange (4 or 6) of the other plate (2). 5. Two-part electrical coupling according to claim 4, characterized in that each opening (29) is designed as an elongated slot which extends laterally with respect to the opposite sides of the other plate (2), and that each locking lug (23) of
the plane of one plate (16) protrudes away. 6. Two-part electrical coupling according to one of claims 1 to 5 »characterized in that that the projection (24) by punching a circular
Hole (25) is formed in one of the plates (2, l6). 7. Plate for use with a coupling according to claim 1, characterized in that it has means (10, 12) for permanent connection with one
electrical conductor (l4,) that has a circular projection (24) and a locking lug (28) from the same side
of the plate (16) that a pair of elongated flanges (18, 20) extend from opposite sides of the plate
(l6) and laterally over the corresponding hand of the plate
(l6) extends out and that the flanges (l8, 20) are held at a distance from one another and essentially parallel to the plane of the plate (l6) and in the direction of their longitudinal extension are offset with respect to each other. 209857/0657 8. Plate for use with a coupling according to claim 5 »with pressure clamps for permanent connection to an electrical conductor, characterized in that each locking lug (23) is designed as a rib which has two converging sides which are connected to one another by a rounded ridge which extends laterally in relation to the longitudinal direction of the pressure clamps (10, 12) (Figures 3 and k) »